baber/WOPTO huggingface dataset:
Patent KR-880000887-B1 (KR)
Title: Sheet recovery apparatus
Inventor: NAKAMURA KUNIHIKO
IPC: B65H33/02
Filed: 1983-07-30
Granted: 1988-05-30
Abstract: An appts. has a blade wheel which has a number of curved slots.  Each curved slot is rotated to sequentially deliver a paper sheet to a conveyor belt.  The appts. also has a dividing member rotated together with the blade wheel and timed such that a corresponding curved slot for receiving the last paper sheet is axially matched with one of the first blades which is positioned between the curved slot which receives the first paper sheet among the second predetermined number of paper sheets and the curved slot which receives the last paper sheets and the curved slot which receives the last paper sheet.  The dividing member is rotated through a predetermined angle and is separated from the blade wheel.
Patent KR-910007147-B1 (KR)
Inventor: KEEM JOHN E
IPC: G01N23/00
Filed: 1984-06-05
Granted: 1991-09-18
Abstract: 내용 없음.
Patent KR-890002992-B1 (KR)
Title: An apparatus for producing gas blast
Inventor: MASUKO DERUO
IPC: F17C13/04
Filed: 1984-06-21
Granted: 1989-08-16
Abstract: The gas blast generator has a tank (1) in communication with a high pressure source (c) and having a cylinder (3) integral with the ohter end.  The cylinder has a discharge port (3b) on the sidewall.  The cylinder also has a cover (4) with an inlet port (4b) at the open end.  It is in communication with the high pressure gas supply source via a branch inlet port (1b) at one end of the tank and a branch pipe (8) extending between the branch inlet and inlet ports.  There is a valve (5) in the cover to release back pressure in the cylinder chamber (R).
Patent KR-900002491-B1 (KR)
Title: Abrasion resistant coating composition and process for making
Inventor: KESHAVAN MADAPUSI K
IPC: C10N10/12
Filed: 1984-10-17
Granted: 1990-04-16
Abstract: A spray composition comprises 78-88 wt.% WC, and an alloy mixture containing (WT.%) 6-18B, 0-65i, 0-20Cr, 0-5Fe and balance Ni. Substrate can pref. be metallic or non-metallic compound. Powder composition is deposited by plasma arc spray to form abrasion resistant coating.  Pref. substrates are steel, stainless steel, Fe- alloys, Ni-alloys, Co-alloys, Cr-alloys, Ti-alloys, refractor metals/ alloy, carbon and graphite.  Thick, smooth, stress free coatings are obtained at fast rates and moderate cost. Coating does not require subsequent heating, as compared to similar compositions with the same alloy which are fired above 950≰C.
Patent KR-910001130-B1 (KR)
Inventor: HAGA DOURU
IPC: C07D249/20
Filed: 1984-11-08
Granted: 1991-02-25
Abstract: 내용 없음.
Patent KR-920005499-B1 (KR)
Inventor: KITANAKA KATSUMI
IPC: E02D5/44
Filed: 1984-12-08
Granted: 1992-07-06
Abstract: 내용 없음.
Patent KR-880000211-B1 (KR)
Title: Control circuit for insert edition
Inventor: WOO HO-JE
IPC: G11B27/02
Filed: 1984-12-31
Granted: 1988-03-12
Abstract: In a four-head video tape recorder having a specified head for a standard and long reproduction operation, the circuit controls the accurate and clear performance for the insert editing of the recorder.  The control circuit includes monostable multivibrators (17) and (18) for delaying head switching signal, a D flip flop (13) for producing an insert erasing signal in synchronism with the erasing head switch signal, an aNalog switch AS1 for giving the head the erase signal, analog switches AS6, AS7 for receiving the erase head switching signal via an AND gate A1, D flip flops (14), (15), (16), NOR gate NR1, an inverter I2, OR gates OR2, OR3, AND gates A3, A4.
Patent KR-870001636-B1 (KR)
Title: Noise silence circuit of a automatic gain regulator
Inventor: KO SONG-SOK
IPC: H04B1/10
Filed: 1985-03-26
Granted: 1987-09-17
Abstract: This invention relates to a noise suppression circuit of automatic gain regulation due to input signal level to eliminate surrounding noise in the middle of communication.  The systems are composed of an audio amp circuit and a band pass filter comparator, a gain regulator.  And capacitors are used for band pass filter output terminals which hold high level input signal.  The voltage at anode of diode due to rectification applies to a multiplier which compares with reference voltage of op amp.  And the output of op amp is connected to serial diode(D1, D2, D3, D4) which switch the connection.
Patent KR-870001487-B1 (KR)
Title: Seasoning compound for seaweed
Inventor: JO JONG-KYU
IPC: A23L27/30
Filed: 1985-04-25
Granted: 1987-08-19
Abstract: A compn. for seasoning seaweed is presented.  Thus, a mixt. contg. 45ml sorbitol, 150ml glucose, 230ml ginger. ext., 120g edible salt, 15g Mi-Won, and 10g tuna powder is heat-treated at 50-60≰C (1st treatment) and at 70-80≰C (2nd treatment).  After cooling to 40≰C, the resulting mixt. is mixed with 1ml red pepper ext. and 20ml soybean sauce to give the final compd.
Patent KR-900005913-B1 (KR)
Title: Base stake inflated in bump state at lower end there of and its construction
Inventor: RIN JUWEI-JEUSE
IPC: E02D5/58
Filed: 1985-10-08
Granted: 1990-08-16
Abstract: The method comprises excavating the soil at the lower end of the shell to an extent larger than the shell in its cross-section, for forming an enlarged base. The method then involves forcing a second charge of concrete through a pressurising tube, the open end of which is extended to the lower end of the excavated portion. This allows for penetrating the second charge of concrete into the region surrounding the base and the shell after a first charge of concrete fills and sets in the excavated portion and the shell.
Patent KR-950000824-B1 (KR)
Inventor: NUMAKURA TOSHIHIKO
IPC: H04N5/76
Filed: 1986-02-05
Granted: 1995-02-02
Abstract: 내용 없음.
Patent KR-870001923-B1 (KR)
Title: Preparation process for concentrated glucose soln by using amilo glucosidase
Inventor: MULLER WILLIAM H
IPC: C12P19/02
Filed: 1986-08-16
Granted: 1987-10-22
Abstract: A method to prepare glucose-concentrated soln by amyloglucosidase is presented.  Thus, 100ml multiporous alumina particles is satd.  by polyethylene imine (PEI).  Amylo glucosidase (AG) is immobilized on PEI-alumina matrix at recycling temp. and pH=4 to give IMAG.  A reactor contg. 20ml IMAG, NA2SO3, and 30 wt.% starch (pH=4.5) gives  a soln. contg. 92 wt% glucose at the flow rate of 70ml/hr.
Patent KR-940010185-B1 (KR)
Inventor: ISHIMATSU YOSHIKATSU
IPC: G11B17/04
Filed: 1986-09-06
Granted: 1994-10-22
Abstract: 내용 없음.
Patent KR-920011042-B1 (KR)
Inventor: PELRI PERI H
IPC: G11C11/406
Filed: 1986-10-04
Granted: 1992-12-26
Abstract: 내용 없음.
Patent KR-900004011-B1 (KR)
Title: Making process for ti hot rolled plate
Inventor: KIM KI-DON
IPC: C21D7/13
Filed: 1986-10-24
Granted: 1990-06-09
Abstract: Process for making hot rolled Ti plate comprises (i) heating the Ti slab to 980-1000 deg.C. (ii) rough rolling the heated slab, (iii) finish rolling the rough-rolled plate at 800-860 deg.C, and (iv) coiling the hot rolled plate at 450-650 deg.C. The slab comprises more than 99.2 wt.% Ti, 0.3-0.6 wt.% Al and the balance impurities. The plate has a improved impact toughness.
Patent KR-900000870-B1 (KR)
Title: Preparation of tertiary 2-chloroacetanilide emulsifiable concentrates
Inventor: BOLLINGER FREDERIC G
IPC: C07C/
Filed: 1986-12-24
Granted: 1990-02-17
Abstract: Prepn. of tert. 2-chloroacetanilide (I) emulsificable concentrates comprises: (a) mixing a soln. of a prim. aniline in org. solvent with chloroacetyl halide; (b) refluxing the mixt. to form a suspension of sec. 2-chloroacetanilide (I) in the solvent and expel by-prod. HCl; (c) mixing the suspension with an alkylating agent in the presence of phase transfer catalyst and an aq. base, and then (I) in its org. solution is isolated from aq. phase; (d) mixing the reaction mixt. with emulsifier to form emulsifiable concentrate of (I).  (I) is useful as herbicides.
Patent KR-950012463-B1 (KR)
Title: Contact strip terminal
Inventor: MOUISSIE BOB
IPC: H01R12/68
Filed: 1987-04-02
Granted: 1995-10-18
Abstract: Contact strip terminal for electrically interconnecting at least one flat conductor of a flexible conductor film with at least a conductor lead wire, said contact strip terminal comprising a strip-type base part (2) of electrically conducting material and at least two groups of teeth (5) projecting outwards relative to a surface of said base part (2) for contacting at least one flexible conductor of said flexible conductor film, wherein each tooth (5) has a sharp pointed end (9) and projects over its total length mainly at a right angle away from said surface of said base part (2), the contact strip terminal further comprising an edge clip connector for connecting the terminal with contact faces of one or both surfaces near an edge of a substrate, the edge clip connector comprising a stem strip (34) and a clip contact (35) in the form of a closed flat longitudinal loop strip which at one end passes into the stem strip (34) and which is bent at the other end backwards about a transverse axis (38) of said flat loop, so that the legs (36, 37) formed by the two halves of said loop come to rest adjacent to each other and together define an approximately U-shaped clip opening. <IMAGE>
Patent KR-910002344-B1 (KR)
Inventor: FUKUSHIMA TOSHIHISA
IPC: G11B27/30
Filed: 1987-05-15
Granted: 1991-04-20
Abstract: 내용 없음.
Patent KR-950008320-B1 (KR)
Inventor: LEE VING-JICK
IPC: C07D501/36
Filed: 1987-07-08
Granted: 1995-07-27
Abstract: 내용 없음.
Patent KR-920001344-B1 (KR)
Inventor: FRICKER ROBERT
IPC: B22D41/24
Filed: 1987-08-18
Granted: 1992-02-11
Abstract: 내용 없음.
Patent KR-970000642-B1 (KR)
Title: Video signal recording and reproducing apparatus
Inventor: NEMOTO SHOJI
IPC: G11B5/588
Filed: 1987-08-21
Granted: 1997-01-16
Abstract: In a signal recording and/or reproducing apparatus including four magnetic heads (HD1, HD2, HD3, HD4) mounted on a rotary drum (2) for forming four parallel recording tracks (TA1, TA2, TA3, TA4) in a repeating sequence on a recording medium (1) with each track (TA1, TA2, TA3, TA4) having an azimuth gap angle different from the azimuth gap angles of the next adjacent tracks (TA1, TA2, TA3, TA4), pilot signals (PL1, PL2, PL3, PL4) having different frequencies (f1, f2, f3, f4) are recorded in a superimposed manner upon the information signals (VIDEO) recorded by the four magnetic heads (HD1, HD2, HD3, HD4), respectively, and, upon reproducing, tracking control is effected so as to ensure that the magnetic heads (HD1, HD2, HD3, HD4) which recorded the pilot signals (PL1, PL2, PL3, PL4) with different respective frequencies are used to reproduce the signals recorded in the respective recording tracks (TA1, TA2, TA3, TA4) so that a period of a timing signal, for example, a horizontal synchronizing signal, contained in the reproduced signal (VIDEO) will not be disturbed upon switching from one to another of the magnetic heads (HD1, HD2, HD3, HD4) in the reproducing mode.
Patent KR-930011397-B1 (KR)
Inventor: BORNER ALFRED
IPC: B26D1/03
Filed: 1987-09-14
Granted: 1993-12-06
Abstract: 내용 없음.
Patent KR-900000122-B1 (KR)
Title: Brushless motor
Inventor: KIM HAN-IL
IPC: H02P1/00
Filed: 1987-11-11
Granted: 1990-01-20
Abstract: The controller comparing a frequency  corresponding to a motor speed and an oscillator freqency for controlling the motor with stability includes an inverter (3) for providing current to the windings (v,w,x), an amplifier (2) for amplifying the output voltage of hall devices (H1,H2,H3), a full wave rectifier (5) for rectifying the counter electromotive voltage of the windings (v,w,x), a logic table (4) for controlling the switching of transistors (TR3-TR8), an adder (6) for adding the output signals of the amplifiers (2) and the rectifier (5), a RC filter (7) for eliminating DC component, and a PLL adjuster (8) for generaing voltage according to the frequency difference of RC filter and a reference frequency generator.
Patent KR-910003510-B1 (KR)
Title: Polyamide composition
Inventor: PEERKLAMP ERIK R
IPC: C08K3/22
Filed: 1987-11-18
Granted: 1991-06-03
Abstract: The invention relates to a polyamide composition with improved stability in contact with oil at elevated temperatures. The polyamide composition with superior stability characteristics has been obtained by the incorporation in the polyamide composition of a small amount of an alkaline inorganic material. Preferably the polyamide is nylon 4.6.
Patent KR-960005282-B1 (KR)
Title: Cube-corner retroreflective articles having tailored divergence profiles
Inventor: APPELDORN ROGER H
IPC: G02B5/124
Filed: 1987-11-20
Granted: 1996-04-23
Abstract: Cube-corner retroreflective article in which the cube-corner retroreflective elements are formed by three intersecting sets of parallel V-shaped grooves (11, 12, 13), at least one of the sets (13) including, in a repeating pattern, at least one groove side angle (132, 133, 134) that differs from another groove side angle (131) of the same set. By the described variation in groove side angle, the array of cube-corner retroreflective elements is divided into repeating sub-arrays that each comprise a plurality of cube-corner retroreflective elements in a plurality of distinctive shapes that retroreflect incident light in distinctively shaped light patterns.
Patent KR-900008050-B1 (KR)
Title: Logic circuitry
Inventor: UENO MASAGE
IPC: H03K19/00
Filed: 1987-11-28
Granted: 1990-10-31
Abstract: The logic circuit comprises an input section for a signal and a section for outputting a signal through a CMOS inverter circuit (I1,I2). An output section has darlington-connected bipolar transistors (Q11,Q12) and a bipolar transistor (Q13) connected to bipolar transistors (Q11,Q12) in the shape of a totem pole. A logical signal is outputted w.r.t. the input signal based on the bipolar transistors operation. A control section has CMOS transistors (P13,P14,P15,N13,N14) operated on the basis of the output signal of the input section. The operation of the bipolar transistors are controlled in accordance with the output signal of the input section.
Patent KR-900007675-B1 (KR)
Title: Circuit for controlling digital data and pulses phases
Inventor: KIM DONG-HYUN
IPC: H04L7/04
Filed: 1987-12-23
Granted: 1990-10-18
Abstract: The controller for synchronising the data and clock with digital elements comprises a transition detector (1) detecting the transition time, a transition signal delay circuit (2) delaying the detection signal in sequence, a data delay line (3) delaying an input data (ID) in sequency by a delay circuit (k), a dual 4:1 selector (4) providing the delayed transition and data signals one by one to output terminals (Zt,Zd), a phase detector (5) providing the counter signals (S0,S1), and a data reproduction circuit (7) providing output data (OD) from output terminal (Q5) of a flipflop (FF5).
Patent KR-880002653-B1 (KR)
Title: Method and apparatus for analyzing the signal transfer characteristics of a signal processing
Inventor: EFRON EDWARD
IPC: G11B27/36
Filed: 1988-07-12
Granted: 1988-12-08
Abstract: When audio or video signal is transfered through the signal processing unit, the evaluation is accomplished by establishing an input signal of known content, measuring selected parameters of selected parts of the input signal, feeding the input signal to the unit under test, measuring the parameters of parts of the output signal from the unit corresponding to the same selected parts of the input signal, and comparing the selected parameters of the input signal with the corresponding parameters of the output signal.  The quality of the signal transfer characteristics of an information handling device, a magnetic contigent program material, a video disc and master disc is evaluated by the unit under test.
Patent KR-970002181-B1 (KR)
Inventor: TANG YUAN-MING
IPC: B01D46/00
Filed: 1988-08-19
Granted: 1997-02-25
Abstract: 내용없음.
Patent KR-930002607-B1 (KR)
Title: Tv channel modulation circuit
Inventor: NA BO-KYU
IPC: H04N5/40
Filed: 1988-11-04
Granted: 1993-04-03
Abstract: A  television  channel  modulation  circuit   improves   the frequency stability of the RF channel by using  the  PLL  circuit. The circuit comprises means (1,2) for  processing  and  modulating the input image signal, means (3,4) for processing and  modulating the input voice signal, a mixer (5) for mixing the  image  carrier frequency and the voice  signal  from  the  FM  modulator  (4),  a combiner (6) for combining the  modulated  image  signal  and  the voice carrier frequency from the mixer, a RF mixer (7) for  mixing the output of the combiner and  the  local  oscillation  frequency (RFLOF), and the first/second frequency modulation  control  means (20,22).
Patent KR-910004268-B1 (KR)
Title: Automatic redialing method
Inventor: JI DUK-GU
IPC: H04M1/27
Filed: 1988-11-30
Granted: 1991-06-25
Abstract: An automatic redial method  for  a  telephoen  comprises  the following steps of: checking an automatic redial mode; detecting a tone at the automatic redial; checking a handset in  case  that  a ring back tone is received; executing a call mode if  the  handset is on-hook and cutting off a line if the handset is off-hook for a predetermined time; and reexecuting said steps after an  appointed time in case that a busy tone is received. The method prevents the line busy without notice.
Patent KR-930002081-B1 (KR)
Inventor: FUJIMOTO TAKANORI
IPC: F02D41/10
Filed: 1988-02-13
Granted: 1993-03-26
Abstract: 내용 없음.
Patent KR-910008556-B1 (KR)
Title: Combustion difficulty resin composition
Inventor: NAKANO AKIKANS
IPC: C08K13/02
Filed: 1989-01-14
Granted: 1991-10-19
Abstract: The flame-retardant resin composition of the present invention contains   (a) 100 parts by weight of a styrene-based polymer having mainly syndiotactic configuration, or a mixture of said styrene-based polymer and a thermoplastic resin (exclusive of tetrafluoroethylene-based polymer) and/or rubber;   (b) 3 to 40 parts by weight of a flame retardant; and (c) 1 to 15 parts by weight of an auxiliary flame retardant, as main components.   In addition, the present invention contains the above components (a), (b) and (c) as main components, and further contains   (d) 0.003 to 10 parts by weight of tetrafluoroethylene-based polymer and/or   (e) 1 to 300 parts by weight of an inorganic filler.   The present invention provides a resin composiiton which is excelenlt in flame retardance and further in heat resistance and mechanical strength.
Patent KR-930001037-B1 (KR)
Inventor: HASHIMOTO TAKAYOSHI
IPC: F02B37/007
Filed: 1989-01-28
Granted: 1993-02-13
Abstract: 내용 없음.
Patent KR-0133075-B1 (KR)
Title: Therapeutic agents for the treatment of peptic ulcer disease
Inventor: WOLF ERHARD
IPC: A61K31/52
Filed: 1989-02-17
Granted: 1998-04-17
Abstract: Therapeutic agents for the treatment of peptic ulcer disease, containing as active ingredient, at least one compound of the general formula <CHEM>  wherein  R<1> and R<3> are the same or different and are each  (C1-C8)alkyl, (C3-C6)alkenyl, -CH2)m- @@-@@-R<4>,    -(CH2)n- @@-R<5>, or -(CH2)p- @-R<6>; R<2> is (C1-C4)alkyl;   R<4> and R<5> are the same or different and are each hydrogen or (C1-C2)alkyl; R<6> is (C1-C2)alkyl; and m, n and p are the same or different and are each 1, 2, 3, 4, 5 or 6; with the proviso that one of the groups R<1> and R<3> is -(CH2)m- @@-@@R<4>    or -(CH2)n- @@-R<5> or that R<3> represents -(CH2)p- @-R<6>.   Some of the components of formula I are novel. c
Patent KR-920004722-B1 (KR)
Inventor: TSUBAKI YASHIRO
IPC: D06F39/08
Filed: 1989-02-22
Granted: 1992-06-15
Abstract: 내용 없음.
Patent KR-0150781-B1 (KR)
Inventor: GERICKE ROLF
IPC: A61P11/00
Filed: 1989-05-04
Granted: 1998-10-15
Abstract: 내용없음.
Patent KR-900001190-B1 (KR)
Title: Preparation process for 3-amino-(1)benzazepin-2-one-1-alkanoic acid
Inventor: WATAY JEFFERY W H
IPC: C07K5/06
Filed: 1989-05-13
Granted: 1990-02-28
Abstract: 3-Amino-[1 benzazepin-2-one-1-alkanoic acids of formula (I), their isomers and salts are prepd. by the altylation of a cpd. of formula (II) with a cpd of formula RB-Z.  Ra and Rb are each -CH (R1R0) or - CH (R2R0) [R0= COR6 or COR7; R6=R7=OH or lower alkoxy!; R1  is H, lower alkyl, aryl or arylakyl; R2 is H or lower altyl; R3 and R4 are each H, lower alkyl, lower alkoxy, OH, halogen or CF3; R5 is  H or lowr alkyl; X is oxo, 2H, H or OH; Z is OH.  (I) are useful as inhibitorsof angiotensin converting enzyme.
Patent KR-920010649-B1 (KR)
Title: Process for the production of paper
Inventor: GOHANSSON HANS E
IPC: D21H23/76
Filed: 1989-05-23
Granted: 1992-12-12
Abstract: A process for the production of paper by forming and dewatering a suspension of cellulose containing fibres, and optional fillers, on a wire. The forming and dewatering is carried out in the presence of a combination of an aluminum compound, a cationic retention agent and a polymeric silicic acid having a high specific surface area. The combination of substances improves dewatering and retention of fines and fillers.
Patent KR-0142325-B1 (KR)
Title: 디스플레이 장치의 지지기구
IPC: G09F9/00
Filed: 1989-07-25
Granted: 1998-07-01
Abstract: 내용없음
Patent KR-960003909-B1 (KR)
Inventor: AOYAMA TETSUO
IPC: G03F7/32
Filed: 1989-10-20
Granted: 1996-03-23
Abstract: 내용 없음.
Patent KR-0160114-B1 (KR)
Title: Composite aluminum plate and target for physical coating processes produced therefrom
Inventor: CHRISTIAN DUMONT
IPC: C23C14/34
Filed: 1989-10-24
Granted: 1999-01-15
Abstract: Laminated aluminium plate and process for producing it. 
<??>Laminated aluminium plates which can be used as a target for coating by means of cathodic sputtering consist of a useful layer of pure aluminium (Al >/= 99.99) or of a binary or ternary alloy smelted on the basis of pure aluminium (Al >/= 99.99) and a carrier layer. 
<??>A laminated aluminium plate having a hardness in the carrier layer of HB >/= 70 is now to be developed which can be produced in a simple and inexpensive process and is suitable for the production of targets for the sputtering technique. 
<??>The novel laminated aluminium plate consists of a carrier layer of a hardenable alloy - preferably of AlMgSi type - and a useful layer of pure aluminium Al >/= 99.99) or of a binary or ternary alloy smelted on the basis of pure aluminium (Al >/= 99.99). 
<??>The overall structure is produced by roll-bonding at temperatures between 350 and 450 DEG C. The proportion of the carrier material is preferably 20 to 35% of the overall thickness. After the hot-rolling at a rolling degree of at least 20%, the laminated plate is solution-annealed between 450 and 540 DEG C metal temperature for less than 30 minutes, preferably less than 15 minutes, quenched in water and then subjected to heat-ageing for 2 to 16 hours at 160 to 180 DEG C. 
<IMAGE>
Patent KR-920006188-B1 (KR)
Title: Method of fabricating semiconductor device
Inventor: SHIM TAE-ON
IPC: H01L27/04
Filed: 1989-12-30
Granted: 1992-08-01
Abstract: The  method  for  producing  a   semiconductor   device   is characterized by growing a field oxide film  (101)  on  a  silicon substrate (100) by the selective oxidation, forming a first  oxide film (OX1) on the substrate by the irradiation of UV under  O2  or O3 atmosphere of at most 300 deg.C, forming a nitride film (N)  on the film (OX1) by the LPCVD, growing a second oxide film (OX2)  on the film  (N)  to  form  a  dielectric  film  of  (OX1)/(N)/(OX2) structure, and forming a capacitor upper  substrate  (11)  on  the dielectric film. The device can increase a memory capacity.
Patent KR-0148789-B1 (KR)
Inventor: CHOE JONG-MOON
IPC: H01L29/92
Filed: 1990-03-09
Granted: 1998-10-01
Abstract: 내용없음.
Patent KR-930001147-B1 (KR)
Inventor: TSUDAKI SHOJI
IPC: G11B5/265
Filed: 1990-03-10
Granted: 1993-02-19
Abstract: 내용 없음.
Patent KR-0140697-B1 (KR)
Inventor: MIYAMOTO TETSUYA
IPC: C09B62/513
Filed: 1990-06-01
Granted: 1998-06-15
Abstract: 내용없음
Patent KR-930005793-B1 (KR)
Inventor: KOBAYASHI TAKAICHI
IPC: G06F1/16
Filed: 1990-06-22
Granted: 1993-06-25
Abstract: 내용 없음.